Power Systems A buchholz relay is used for protection of a transformer against all external faults nether 1 nor 2 both 1 and 2 protection of a transformer against all internal faults protection of a transformer against all external faults nether 1 nor 2 both 1 and 2 protection of a transformer against all internal faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reator thermal energy is obtained from fusion of radioactive material. all of above. fission of radioactive material. burning of fuel rods in oxygen. fusion of radioactive material. all of above. fission of radioactive material. burning of fuel rods in oxygen. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the correct expression for the electrical power developed by ( 7 / 75 ) × WQHη. 75 × 0.736 × WQHη. ( 0.763 / 75 ) × WQHη. ( 75 / 0.736 ) × WQHη. ( 7 / 75 ) × WQHη. 75 × 0.736 × WQHη. ( 0.763 / 75 ) × WQHη. ( 75 / 0.736 ) × WQHη. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Failure of prime mover of the generator All of these Over voltage Failure of excitation Failure of prime mover of the generator All of these Over voltage Failure of excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the load is short circuited, then reflection coefficient of voltage is -1 0 -2 1 -1 0 -2 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Vacuum CB Sulphur hexafluoride CB Bulk oil type CB Air blast CB Vacuum CB Sulphur hexafluoride CB Bulk oil type CB Air blast CB ANSWER DOWNLOAD EXAMIANS APP
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